KGB

The Committee for State Security (Russian: Komitet gosudarstvennoy bezopasnosti), known widely as the KGB, was the main intelligence agency of the Soviet Union from its establishment under Nikita Krushchev in 1954 until the collapse of the Soviet Union in 1991. They carried out covert international missions in a role similar to that of their rivals, the United States' CIA and Great Britain's MI6.

History
Soviet Premier Nikita Krushchev established the Committee for State Security in 1954 upon becoming the leader of the Soviet Union, and his aim was to replace the NKGB, MGB, and Cheka in putting down anti-government activists, radical politicians, and foreign agents. They quickly became involved in world events and, similar to the United States' CIA, the KGB were responsible for covert activities across the world.